B4 - Organising Animals and Plants
Exam Question Packs and Mark Schemes
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Videos
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A good summary revision video on the different components of blood and what their roles are. |
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The main features of the different blood vessels are covered in this revision video. |
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A great animation explaining how the heart pumps blood around the body |
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A good video showing you how a heart attack can happen and ways doctors can treat and prevent it. |
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A short video showing you how pacemakers work. |
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Excellent video explaining how your lungs work and exchange gases to keep you alive. |
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A second video to help you understand the mechanisms of breathing better. |
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The structure of the leaf (an important plant organ) is covered in this straight talking video. |
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Plant transport (part 1) - an introduction to xylem and phloem. |
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A more detailed look at the Xylem and Transpiration (how water is lifted up to the plant to the leaves). |
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This last video on plant transport covered the phloem and how plants move sugars around (Translocation). |
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Although not the most exciting video, it will talk you through how transpiration rates can be measured. |
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